Alert archive / California / Wind Advisories in 2020
Wind Advisory 18, NWS Los Angeles, CA
NWS Los Angeles, CA issued this wind advisory at Mar 1, 2020, 9:02 PM PST for Los Angeles County, California. It took effect at Mar 2, 2020, 6:00 AM PST. It was in force for 30 hr.
The area
The counties it named.
The facts
- Issued
- Mar 1, 2020, 9:02 PM PST (05:02 UTC)
- In effect from
- Mar 2, 2020, 6:00 AM PST
- Expired
- Mar 3, 2020, 12:00 PM PST
- In force
- 30 hr
- Issued by
- NWS Los Angeles, CA
County Los Angeles County, CA
The radar
The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 05:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
San Diego, CA (KNKX), launched 00:00Z, 5.0 hours before the alert went out and 184 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 7 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 829 m above ground
- 0-6 km bulk shear
- 89 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
384 WWUS76 KLOX 020502 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 902 PM PST Sun Mar 1 2020 CAZ046-088-547-021400- /O.NEW.KLOX.WI.Y.0018.200302T1400Z-200303T2000Z/ Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 902 PM PST Sun Mar 1 2020 ...WIND ADVISORY IN EFFECT FROM 6 AM MONDAY TO NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Santa Monica Mountains, Santa Clarita Valley and San Fernando Valley. * WHEN...From 6 AM Monday to noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14 and 118. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Gomberg
6 follow-up statements
644 WWUS76 KLOX 021132 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 332 AM PST Mon Mar 2 2020 CAZ053-030000- /O.EXA.KLOX.WI.Y.0018.200302T1400Z-200303T2000Z/ Ventura County Mountains- Including the cities of Lockwood Valley and Mount Pinos 332 AM PST Mon Mar 2 2020 ...WIND ADVISORY IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Ventura County Mountains. * WHEN...From 6 AM this morning to noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 near the Grapevine and Highway 33. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ045-030000- /O.EXA.KLOX.WI.Y.0018.200302T1400Z-200303T2000Z/ Ventura County Coastal Valleys- Including the cities of Thousand Oaks, Simi Valley, Moorpark, and Newbury Park 332 AM PST Mon Mar 2 2020 ...WIND ADVISORY IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. Winds will taper off this evening a bit, then restrengthen once again early Tuesday morning. * WHERE...Ventura County Coastal Valley. * WHEN...From 6 AM this morning to noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14 and 118. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ046-088-547-030000- /O.CON.KLOX.WI.Y.0018.200302T1400Z-200303T2000Z/ Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 332 AM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 45 mph expected. Winds will taper off this evening a bit, then restrengthen once again early Tuesday morning. Local gusts to 50 mph possible in the Santa Monica Mountains. * WHERE...Santa Monica Mountains, Santa Clarita Valley and San Fernando Valley. * WHEN...From 6 AM Monday to noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14 and 118. Canyon roads in the Santa Monica Mountains including Malibu Canyon and Kanan Road will be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CK
063 WWUS76 KLOX 021556 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 756 AM PST Mon Mar 2 2020 CAZ054-030000- /O.EXB.KLOX.WI.Y.0018.200302T1600Z-200303T2000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 756 AM PST Mon Mar 2 2020 ...WIND ADVISORY IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14 and 118. Canyon roads in the Santa Monica Mountains including Malibu Canyon and Kanan Road will be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ046-088-547-030000- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 756 AM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 45 mph expected. Winds will taper off this evening a bit, then restrengthen once again early Tuesday morning. Local gusts to 50 mph possible in the Santa Monica Mountains. * WHERE...Santa Monica Mountains, Santa Clarita Valley and San Fernando Valley. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14 and 118. Canyon roads in the Santa Monica Mountains including Malibu Canyon and Kanan Road will be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ053-030000- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Mountains- Including the cities of Lockwood Valley and Mount Pinos 756 AM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Ventura County Mountains. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 near the Grapevine and Highway 33. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ045-030000- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Coastal Valleys- Including the cities of Thousand Oaks, Simi Valley, Moorpark, and Newbury Park 756 AM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. Winds will taper off this evening a bit, then restrengthen once again early Tuesday morning. * WHERE...Ventura County Coastal Valley. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14 and 118. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Sweet
806 WWUS76 KLOX 022320 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 320 PM PST Mon Mar 2 2020 CAZ046-088-547-031130- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Santa Monica Mountains Recreational Area-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 320 PM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 45 mph expected. Winds will taper off this evening a bit, then restrengthen once again early Tuesday morning. Local gusts to 50 mph possible in the Santa Monica Mountains. * WHERE...Santa Monica Mountains, Santa Clarita Valley and San Fernando Valley. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14 and 118. Canyon roads in the Santa Monica Mountains including Malibu Canyon and Kanan Road will be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ054-031130- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 320 PM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14 and 118. Canyon roads in the Santa Monica Mountains including Malibu Canyon and Kanan Road will be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ053-031130- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Mountains- Including the cities of Lockwood Valley and Mount Pinos 320 PM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Ventura County Mountains, mainly southeastern ranges. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 near the Grapevine and Highway 33. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ045-031130- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Coastal Valleys- Including the cities of Thousand Oaks, Simi Valley, Moorpark, and Newbury Park 320 PM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...Northeast winds 20 to 30 mph with gusts up to 45 mph expected. Winds will taper off this evening a bit, then restrengthen once again early Tuesday morning. * WHERE...Ventura County Coastal Valley, strongest eastern valleys. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14 and 118. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MW
927 WWUS76 KLOX 030154 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 554 PM PST Mon Mar 2 2020 CAZ046-031100- /O.UPG.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ /O.NEW.KLOX.HW.W.0007.200303T0154Z-200303T2000Z/ Santa Monica Mountains Recreational Area- 554 PM PST Mon Mar 2 2020 ...HIGH WIND WARNING IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...Areas of north to northeast winds 25 to 40 mph with gusts up to 60 mph. * WHERE...Santa Monica Mountains. * WHEN...Until noon PST Tuesday. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Roadways affected by gusty and potentially hazardous cross winds include Kanan, Malibu Canyon, Topanga, and Decker Canyon Roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ054-031100- /O.UPG.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ /O.NEW.KLOX.HW.W.0007.200303T0154Z-200303T2000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 554 PM PST Mon Mar 2 2020 ...HIGH WIND WARNING IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...Areas of north to northeast winds 25 to 40 mph with gusts up to 60 mph. * WHERE...Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until noon PST Tuesday. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Roadways affected by gusty and potentially hazardous cross winds include Interstate 5 and Highway 14. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ039-052-031100- /O.EXB.KLOX.WI.Y.0018.000000T0000Z-200303T1100Z/ Santa Barbara County South Coast-Santa Barbara County Mountains- Including the cities of Santa Barbara, Montecito, Carpinteria, San Marcos Pass, San Rafael Wilderness Area, and Dick Smith Wilderness Area 554 PM PST Mon Mar 2 2020 ...WIND ADVISORY IN EFFECT UNTIL 3 AM PST TUESDAY... * WHAT...Areas of north winds 15 to 30 mph with gusts up to 45 mph expected. * WHERE...Santa Barbara County South Coast and Santa Barbara County Mountains. * WHEN...Until 3 AM PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Highways 101, 154 and 192...as well as the Gaviota and San Marcos Passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ548-031100- /O.EXA.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Los Angeles County San Gabriel Valley- Including the cities of Pasadena, San Gabriel, and Pomona 554 PM PST Mon Mar 2 2020 ...WIND ADVISORY IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...Areas of north to northeast winds 15 to 30 mph with gusts up to 45 mph expected. Local gusts to around 55 mph are possible in the foothills near Altadena, Pasadena and Sierra Madre. * WHERE...San Gabriel Valley. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest winds will likely occur in the foothills near Altadena, Pasadena and Sierra Madre. Major roadways that could be impacted by the gusty winds include the 2, 134 and 210 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ041-031100- /O.EXA.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Los Angeles County Coast including Downtown Los Angeles- Including the cities of Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 554 PM PST Mon Mar 2 2020 ...WIND ADVISORY IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 15 to 30 mph with gusts up to 40 mph expected. * WHERE...From Malibu to the Hollywood Hills in the Los Angeles County Coast. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include the Pacific Coast Highway, and the 10 and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ044-031100- /O.EXA.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Interior Valleys- Including the cities of Santa Paula, Fillmore, Ojai, and Piru 554 PM PST Mon Mar 2 2020 ...WIND ADVISORY IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...Areas of north to northeast winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Ventura County Interior Valleys, mainly eastern portion. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Highway 126, east of Fillmore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ045-088-547-031100- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Coastal Valleys-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 554 PM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 35 mph with gusts up to 50 to 55 mph expected. Local gusts to around 55 mph are possible in the foothills. * WHERE...Santa Monica Mountains, Santa Clarita Valley and San Fernando Valley. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14, 23, 101, and 118. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ053-031100- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Mountains- Including the cities of Lockwood Valley and Mount Pinos 554 PM PST Mon Mar 2 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Ventura County Mountains, mainly southeastern ranges. * WHEN...Until noon PST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 near the Grapevine and Highway 33. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Hall
530 WWUS76 KLOX 031129 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 329 AM PST Tue Mar 3 2020 CAZ046-032000- /O.CAN.KLOX.HW.W.0007.000000T0000Z-200303T2000Z/ /O.EXA.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Santa Monica Mountains Recreational Area- 329 AM PST Tue Mar 3 2020 ...WIND ADVISORY IN EFFECT UNTIL NOON PST TODAY... ...HIGH WIND WARNING IS CANCELLED... * WHAT...Areas of north to northeast winds 25 to 40 mph with gusts up to 55 mph. Isolated gusts to 60 mph possible in the morning. * WHERE...Santa Monica Mountains. * WHEN...Until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Roadways affected by gusty and potentially hazardous cross winds include Kanan, Malibu Canyon, Topanga, and Decker Canyon Roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ548-031230- /O.CAN.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Los Angeles County San Gabriel Valley- Including the cities of Pasadena, San Gabriel, and Pomona 329 AM PST Tue Mar 3 2020 ...WIND ADVISORY IS CANCELLED... There will be local gusty north to northeast winds 15 to 25 mph with local gusts to 35 mph in some foothill locations this morning. $$ CAZ039-052-031230- /O.EXP.KLOX.WI.Y.0018.000000T0000Z-200303T1100Z/ Santa Barbara County South Coast-Santa Barbara County Mountains- Including the cities of Santa Barbara, Montecito, Carpinteria, San Marcos Pass, San Rafael Wilderness Area, and Dick Smith Wilderness Area 329 AM PST Tue Mar 3 2020 ...WIND ADVISORY HAS EXPIRED... There will continue to be local gusty northerly winds with gusts to 30 mph early this morning. mainly near Gaviota and below the hills of Montecito. $$ CAZ054-032000- /O.CON.KLOX.HW.W.0007.000000T0000Z-200303T2000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 329 AM PST Tue Mar 3 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Areas of north to northeast winds 25 to 40 mph with gusts up to 60 mph. * WHERE...Los Angeles County Mountains excluding the Santa Monica Range. * WHEN...Until noon PST today. * IMPACTS...Damaging winds will blow down large objects such as trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Roadways affected by gusty and potentially hazardous cross winds include Interstate 5 and Highway 14. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ CAZ045-088-547-032000- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Coastal Valleys-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 329 AM PST Tue Mar 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...North to northeast winds 20 to 35 mph with gusts up to 50 mph expected. Local gusts to around 55 mph are possible in the foothills. * WHERE...Santa Clarita Valley, San Fernando Valley and the Ventura Coastal Valley. * WHEN...Until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 and 405, as well well as Highways 14, 23, 101, and 118. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ053-032000- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Mountains- Including the cities of Lockwood Valley and Mount Pinos 329 AM PST Tue Mar 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...North to northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Ventura County Mountains, mainly southeastern ranges. * WHEN...Until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Interstates 5 near the Grapevine and Highway 33. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ041-032000- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Los Angeles County Coast including Downtown Los Angeles- Including the cities of Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 329 AM PST Tue Mar 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...North to northeast winds 15 to 25 mph with gusts up to 35 mph expected. * WHERE...Below passes and canyons from Malibu to the Hollywood Hills in the Los Angeles County Coast. * WHEN...Until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include the Pacific Coast Highway, and the 10 and 405 freeways. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CAZ044-032000- /O.CON.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Interior Valleys- Including the cities of Santa Paula, Fillmore, Ojai, and Piru 329 AM PST Tue Mar 3 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY... * WHAT...Areas of north to northeast winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Ventura County Interior Valleys, mainly eastern portion. * WHEN...Until noon PST today. * IMPACTS...Gusty winds will blow around unsecured objects and make driving difficult, especially for high profile vehicles. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Major roadways that could be impacted by the gusty winds include Highway 126, east of Fillmore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ CK
133 WWUS76 KLOX 031947 NPWLOX URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 1147 AM PST Tue Mar 3 2020 CAZ054-032100- /O.EXP.KLOX.HW.W.0007.000000T0000Z-200303T2000Z/ Los Angeles County Mountains excluding the Santa Monica Range- Including the cities of Acton, Mount Wilson, and Sandberg 1147 AM PST Tue Mar 3 2020 ...HIGH WIND WARNING WILL EXPIRE AT NOON PST TODAY... Northeast winds 15 to 25 mph with local gusts to 40 mph will continue through today. $$ CAZ045-088-547-032100- /O.EXP.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Coastal Valleys-Santa Clarita Valley- Los Angeles County San Fernando Valley- Including the cities of Thousand Oaks, Simi Valley, Moorpark, Newbury Park, Santa Clarita, Newhall, Valencia, Woodland Hills, Northridge, Burbank, and Universal City 1147 AM PST Tue Mar 3 2020 ...WIND ADVISORY WILL EXPIRE AT NOON PST TODAY... Northeast winds 15 to 25 mph with local gusts to 35 mph will continue through today. $$ CAZ053-032100- /O.EXP.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Mountains- Including the cities of Lockwood Valley and Mount Pinos 1147 AM PST Tue Mar 3 2020 ...WIND ADVISORY WILL EXPIRE AT NOON PST TODAY... Northeast winds 15 to 25 mph with local gusts to 35 mph will continue through today. $$ CAZ041-032100- /O.EXP.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Los Angeles County Coast including Downtown Los Angeles- Including the cities of Malibu, Santa Monica, Beverly Hills, Hollywood, and Long Beach 1147 AM PST Tue Mar 3 2020 ...WIND ADVISORY WILL EXPIRE AT NOON PST TODAY... Northeast winds 15 to 25 mph will continue through today, mainly from Malibu to the Hollywood Hills. $$ CAZ044-032100- /O.EXP.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Ventura County Interior Valleys- Including the cities of Santa Paula, Fillmore, Ojai, and Piru 1147 AM PST Tue Mar 3 2020 ...WIND ADVISORY WILL EXPIRE AT NOON PST TODAY... Northeast winds 15 to 25 mph with local gusts to 35 mph will continue through today. $$ CAZ046-032100- /O.EXP.KLOX.WI.Y.0018.000000T0000Z-200303T2000Z/ Santa Monica Mountains Recreational Area- 1147 AM PST Tue Mar 3 2020 ...WIND ADVISORY WILL EXPIRE AT NOON PST TODAY... Northeast winds 15 to 25 mph with local gusts to 35 mph will continue through today. $$ MW
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Los Angeles, CA wrote its last area forecast discussion before this wind advisory went out at Mar 1, 8:35 PM PST, 27 minutes earlier.
Area forecast discussion, Mar 1, 8:35 PM PST, 27 minutes before
Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
835 PM PST Sun Mar 1 2020
.SYNOPSIS...01/814 PM.
Showers will move across the region tonight and may linger as late
as midday Monday in eastern Los Angeles County. Snow will fall on
the major passes tonight and will dip to as low as 2500 feet by
Monday morning. Conditions will be warm and dry Tuesday through
Friday.
&&
.SHORT TERM (SUN-WED)...01/834 PM.
The cold upper level low pressure system is now centered around
170 miles southwest of Point Conception. The low is expected to
track southeast overnight and become centered off the coast
of northern Baja by Monday morning. Rainfall amounts with this
system so far have been widely varying. As of 8 pm, mostly light
amounts less than a quarter inch, but a few sites in the eastern
San Gabriels have seen between 0.50 and 0.90 inches, where upslope
flow has been enhanced. Scattered shower activity is expected to
continue across the forecast area this evening, then begin to
diminish during the overnight hours, except wrap around moisture
will keep the threat of showers into Monday morning for the
Antelope Valley and San Gabriel mountains.
Some snow showers have been observed at the summit of Interstate
5 near the Grapevine this evening (around 4000 feet). Snow levels
are expected to continue lowering to between 2500 and 3000 feet
overnight into Monday morning. The bulk of the wrap around snow
potential overnight into Monday morning will be across the
eastern San Gabriels and the adjacent foothills of the Antelope
Valley. There is also a chance of a dusting of snow on the
Antelope Valley floor.
*** From previous discussion ***
Gusty Santa Ana winds expected to develop Monday morning leading
to advisory level winds across portions of LA/Ventura Counties.
Winds expected to subside a little during the evening hours but
then picking up again Tuesday morning into early afternoon. The
offshore flow will help warm temps quite a bit at lower elevations
but still chilly across the interior Monday. Tuesday highs
expected to reach close to 80 in some of the warmer parts of the
coast and valleys in LA/Ventura Counties with the offshore flow
and building ridge aloft.
The ridge remains in place Wednesday however light onshore flow is
expected to return which will lead to a cooling trend for
coast/valleys but continued warming for the interior.
.LONG TERM (THU-SUN)...01/217 PM.
Quiet weather again Thursday with a little warm up expected as
gradients trend offshore slightly.
On Friday the ridge shifts east as a trough approaches from the
west. Onshore trends will result in several degrees of cooling
most areas but especially coast/valleys.
Deterministic models continue to be at odds with the timing
on this next trough with the GFS at least 12-18 hours faster than
the ECMWF. The ensembles suggest a high probability of rain at
some point next weekend but there's large spread on the timing.
As a result the official pop forecast doesn't adequately
represent the likelihood of rain next weekend which if taken as a
48 hour period would probably be in the 60-90% range, but instead
is closer to 30 percent currently since the chances in each 6-12
hour block is lower due to the timing uncertainty. So expect rain
next weekend, and the odds favor a higher chance Saturday than
Sunday but at this far range that could easily change. Currently
it has the appearance of a typical winter storm in terms of
precip amounts, around a half inch on average but with the usual
upslope enhancements.
Looks like there will be at least a couple days break before the
next system arrives around the middle of the following week which
models have been suggesting could be a much wetter system.
&&
.AVIATION...01/1823Z.
At 1714Z, there was no marine inversion at KLAX, but there is a
deep moist layer to 4000 feet.
Skies were mostly cloudy across the region this morning, and will
remain so for much of the period. Conditions will be mostly VFR to
high MVFR, except IFR to VLIFR in the mountains. There is a chance
of showers across the region through tonight, except through Mon
morning in the mountains. The best chance of showers will be
confined to areas south of Point Conception. Snow levels will
drop from 4500 feet this afternoon to 2500 to 3000 feet tonight.
Gusty southwest to west winds will affect the Antelope Valley, and
will likely produce areas of blowing dust, with occasionally
sharply reduced visibilities later this morning through this
afternoon.
Gusty northwest winds will affect the Central Coast, and gusty
west winds will affect coastal sections south of Pt Conception
later this morning through this evening.
KLAX...Moderate confidence in the 18Z TAF. There is a 20-30%
chance of MVFR cigs tonight between 03Z and 09Z. There is a 20%
chance of North winds of 12 to 15 knots between 12Z and 17Z Mon.
KBUR...Moderate confidence in the 18Z TAF. There is a chance of
MVFR cigs 20-30% at any time through 09Z tonight.
&&
.MARINE...01/207 PM.
For the Outer Waters, very low confidence in the forecast. The 12z
models have completely shifted gears with the strongest winds
circumnavigating the coastal waters. Gale warnings have been
replaced with Small Craft Advisories this afternoon. After that,
Small Craft Advisory (SCA) level NW winds and hazardous seas will
likely continue thru late Mon night. There is a 30% chance that
SCA conds will persist into Tue.
For the Inner Waters north of Pt. Sal, moderate to high confidence
in the forecast. SCA level NW winds are expected to continue thru
Mon evening, though there may be period of time late tonight and
early Mon when winds are below SCA levels. However, seas will
likely remain at or above SCA levels thru late Mon night.
For the Inner Waters south of Pt. Conception, very low confidence
in the forecast. Gale warnings have been replaced with Small Craft
Advisories. There is a 30-40% chance of SCA conditions Mon into
Mon evening.
There is a slight chance of thunderstorms across the waters
this afternoon and evening.
&&
.BEACHES...01/207 PM.
A large west northwest swell will bring high surf to all west and
northwest facing beaches of southwestern California through Mon
evening. The highest surf is expected later today thru Mon morning,
then surf should slowly subside. Surf of 8 to 12 feet is expected
on the Central Coast. South of Pt Conception, breakers of 4 to 7
feet are expected. Dangerous rip currents will accompany the high
surf. Minor beach erosion is also possible.
&&
.LOX WATCHES/WARNINGS/ADVISORIES...
CA...High Surf Advisory in effect until 4 PM PST Monday for zones
34-35. (See LAXCFWLOX).
Beach Hazards Statement in effect through Monday evening for
zone 39. (See LAXCFWLOX).
High Surf Advisory in effect until 9 PM PST Monday for zones
40-41-87. (See LAXCFWLOX).
Winter Weather Advisory in effect until 7 AM PST Monday for
zone 53. (See LAXWSWLOX).
Winter Weather Advisory in effect until noon PST Monday for
zone 54. (See LAXWSWLOX).
PZ...Small Craft Advisory in effect until 3 AM PST Tuesday for
zones 645-670-673-676. (See LAXMWWLOX).
&&
.HAZARD POTENTIAL OUTLOOK (WED-SUN).
No significant hazards expected.
&&
PUBLIC...Gomberg/MW
AVIATION...Sweet/DB
MARINE...Sweet
BEACHES...Sweet
SYNOPSIS...Kj
weather.gov/losangelesNearby
Wind Advisories in California, 2020Every wind advisory in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.